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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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Air carrier MD80 on vector for approach to oak was turned then slowed to 180 KTS and given a frequency change and during the change received a TCASII TA on an unknown aircraft same altitude opposite direction. New controller gave MD80 a turn to miss the other aircraft who passed by approximately 2 mi laterally.
| Attributes | |
| ACN | 352967 |
| Time | |
| Date | 199611 |
| Day | Sat |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : oak |
| State Reference | CA |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : oak |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 352967 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera |
| Resolutory Action | controller : issued new clearance other |
| Consequence | Other |
| Miss Distance | horizontal : 12000 vertical : 0 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
We were on downwind receiving vectors for oakland. Approach control, frequency 134.5, gave us a heading of 180 degrees, corrected it to slow to 180 KIAS and switch to frequency 135.4 and during the switch the TCASII gave us a traffic alert. The traffic was co-altitude and closing head-on and inside of 5 mi. The new controller issued an immediate right turn to avoid the traffic. The traffic was missed by about 2 mi. In light of what just happened over india, I'm curious as to how this near event happened with the bay controllers working our arrival.
Original NASA ASRS Text
Title: ACR MD80 ON VECTOR FOR APCH TO OAK WAS TURNED THEN SLOWED TO 180 KTS AND GIVEN A FREQ CHANGE AND DURING THE CHANGE RECEIVED A TCASII TA ON AN UNKNOWN ACFT SAME ALT OPPOSITE DIRECTION. NEW CTLR GAVE MD80 A TURN TO MISS THE OTHER ACFT WHO PASSED BY APPROX 2 MI LATERALLY.
Narrative: WE WERE ON DOWNWIND RECEIVING VECTORS FOR OAKLAND. APCH CTL, FREQ 134.5, GAVE US A HDG OF 180 DEGS, CORRECTED IT TO SLOW TO 180 KIAS AND SWITCH TO FREQ 135.4 AND DURING THE SWITCH THE TCASII GAVE US A TFC ALERT. THE TFC WAS CO-ALT AND CLOSING HEAD-ON AND INSIDE OF 5 MI. THE NEW CTLR ISSUED AN IMMEDIATE R TURN TO AVOID THE TFC. THE TFC WAS MISSED BY ABOUT 2 MI. IN LIGHT OF WHAT JUST HAPPENED OVER INDIA, I'M CURIOUS AS TO HOW THIS NEAR EVENT HAPPENED WITH THE BAY CTLRS WORKING OUR ARR.
Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.